CA3029037C - Codeur et decodeur audio - Google Patents
Codeur et decodeur audio Download PDFInfo
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- CA3029037C CA3029037C CA3029037A CA3029037A CA3029037C CA 3029037 C CA3029037 C CA 3029037C CA 3029037 A CA3029037 A CA 3029037A CA 3029037 A CA3029037 A CA 3029037A CA 3029037 C CA3029037 C CA 3029037C
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- envelope
- blocks
- predictor
- transform coefficients
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Stereo-Broadcasting Methods (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Un codeur de la parole basé sur une transformée, qui est conçu pour coder un signal vocal dans un train de bits, est décrit. Le codeur comprend une unité de trame conçue pour recevoir plusieurs blocs séquentiels des coefficients de transformée, dont un bloc actuel; une unité dégalisation conçue pour déterminer un bloc actuel de coefficients de transformée égalisés en égalisant un bloc actuel correspondant à laide dune enveloppe de bloc actuelle correspondante; un prédicteur comprenant un extracteur configuré pour déterminer un bloc actuel des coefficients de transformée estimés en fonction dun ou plusieurs paramètres de prédiction; un conformateur spectral configuré pour déterminer le bloc actuel de coefficients de transformée égalisés transformés en fonction des paramètres de prédiction; et une unité de différence conçue pour déterminer un bloc actuel de coefficients derreur de prédiction en fonction du bloc actuel de coefficients de transformée égalisés et le bloc actuel de coefficients de transformée égalisés estimés, le train binaire étant déterminé en fonction du bloc actuel de coefficients derreur de prédiction.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361808675P | 2013-04-05 | 2013-04-05 | |
US61/808,675 | 2013-04-05 | ||
US201361875553P | 2013-09-09 | 2013-09-09 | |
US61/875,553 | 2013-09-09 | ||
CA2948694A CA2948694C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2948694A Division CA2948694C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
Publications (2)
Publication Number | Publication Date |
---|---|
CA3029037A1 CA3029037A1 (fr) | 2014-10-09 |
CA3029037C true CA3029037C (fr) | 2021-12-28 |
Family
ID=50439392
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2908625A Active CA2908625C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA3029041A Active CA3029041C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA2997882A Active CA2997882C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA3029033A Active CA3029033C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA3029037A Active CA3029037C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA2948694A Active CA2948694C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2908625A Active CA2908625C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA3029041A Active CA3029041C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA2997882A Active CA2997882C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
CA3029033A Active CA3029033C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2948694A Active CA2948694C (fr) | 2013-04-05 | 2014-04-04 | Codeur et decodeur audio |
Country Status (20)
Country | Link |
---|---|
US (4) | US10043528B2 (fr) |
EP (3) | EP3671738B1 (fr) |
JP (1) | JP6227117B2 (fr) |
KR (5) | KR101739789B1 (fr) |
CN (2) | CN109712633B (fr) |
AU (7) | AU2014247000B2 (fr) |
BR (3) | BR122020017853B1 (fr) |
CA (6) | CA2908625C (fr) |
DK (1) | DK2981958T3 (fr) |
ES (1) | ES2665599T3 (fr) |
HK (2) | HK1218802A1 (fr) |
HU (1) | HUE039143T2 (fr) |
IL (5) | IL294836B1 (fr) |
MX (1) | MX343673B (fr) |
MY (1) | MY176447A (fr) |
PL (1) | PL2981958T3 (fr) |
RU (3) | RU2630887C2 (fr) |
SG (1) | SG11201507703SA (fr) |
UA (1) | UA114967C2 (fr) |
WO (1) | WO2014161991A2 (fr) |
Families Citing this family (14)
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CA2908625C (fr) | 2013-04-05 | 2017-10-03 | Dolby International Ab | Codeur et decodeur audio |
PL3139381T3 (pl) * | 2014-05-01 | 2019-10-31 | Nippon Telegraph & Telephone | Urządzenie generujące sekwencję okresowej połączonej obwiedni, sposób generowania sekwencji okresowej połączonej obwiedni, program do generowania sekwencji okresowej połączonej obwiedni i nośnik rejestrujący |
BR112017000629B1 (pt) * | 2014-07-25 | 2021-02-17 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschug E.V. | aparelho de codificação de sinal de áudio e método de codificação de sinal de áudio |
US9530400B2 (en) * | 2014-09-29 | 2016-12-27 | Nuance Communications, Inc. | System and method for compressed domain language identification |
EP3107096A1 (fr) * | 2015-06-16 | 2016-12-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Décodage à échelle réduite |
US10210871B2 (en) * | 2016-03-18 | 2019-02-19 | Qualcomm Incorporated | Audio processing for temporally mismatched signals |
CN106782573B (zh) * | 2016-11-30 | 2020-04-24 | 北京酷我科技有限公司 | 一种编码生成aac文件的方法 |
KR102587134B1 (ko) * | 2017-06-19 | 2023-10-06 | 알티엑스 에이에스 | 음성 신호 인코딩 및 디코딩 |
CN110764422A (zh) * | 2018-07-27 | 2020-02-07 | 珠海格力电器股份有限公司 | 电器的控制方法和装置 |
EP3751567B1 (fr) | 2019-06-10 | 2022-01-26 | Axis AB | Procédé, programme informatique, codeur et dispositif de surveillance |
CA3162929A1 (fr) * | 2019-11-27 | 2021-06-03 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Codeur, decodeur, procede de codage et procede de decodage pour la prediction a long terme dans le domaine frequentiel de signaux de tonalite pour un codage audio |
CN112201283B (zh) * | 2020-09-09 | 2022-02-08 | 北京小米松果电子有限公司 | 音频播放方法及装置 |
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WO2023056920A1 (fr) * | 2021-10-05 | 2023-04-13 | Huawei Technologies Co., Ltd. | Réseau neuronal perceptron multicouche pour traitement de la parole |
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